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Finding the Fourth Proportional to 586,428.60, 879,527.70 and 192,444.60

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Solution

The fourth proportional to 586,428.60, 879,527.70 and 192,444.60 is: 288,629.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,428.60 : 879,527.70 = 192,444.60 : x
  2. Step 2: Convert to fraction form
    586,428.60/879,527.70 = 192,444.60/x
  3. Step 3: Cross multiply
    586,428.60x = 879,527.70 × 192,444.60
  4. Step 4: Simplify right side
    586,428.60x = 169,260,356,415.42
  5. Step 5: Solve for x
    x = 169,260,356,415.42/586,428.60
  6. Step 6: Final answer
    x = 288,629.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.